Red Team Security Engineer

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Red Team Security Engineer in Remote new

Backblaze External Website
Full time
Email

Remote
10/19/2026
Report

Costa Rica

Responsibilities

Emulate external attackers, malicious insiders, compromised identities, and autonomous adversarial agents.
Validate the practical exploitability of vulnerabilities and configuration weaknesses.
Develop and execute attack paths across web applications, APIs, cloud infrastructure, identity systems, endpoints, and enterprise services.
Use AI-assisted and agentic techniques for reconnaissance, vulnerability analysis, attack-path discovery, and offensive testing.
Test AI applications and agents for prompt injection, tool abuse, excessive privilege, identity compromise, and related attack classes.
Validate mitigations and compensating controls before and after deployment.
Conduct purple-team exercises to assess telemetry, detection, and response effectiveness.
Translate offensive findings into improvements to architecture, configuration, detections, and response capabilities.

Requirements

Experience in red teaming, penetration testing, adversary emulation, or offensive security engineering.
Strong web, API, cloud, identity, operating-system, and network security fundamentals.
Experience validating practical exploitability and developing realistic attack paths.
Strong understanding of MITRE ATT&CK and modern adversary techniques.
Familiarity with OWASP Top 10 for LLM, OWASP Top 10 for Agentic Applications, and MITRE ATLAS.
Scripting or software-development experience.
Experience safely using automation or AI-assisted techniques in offensive-security workflows.
Experience assessing cloud-native or AI-enabled systems, conducting purple-team exercises, or simulating autonomous adversaries is preferred.

Backblaze External Website

AI infrastructure runs on data. Storage gets hard at scale. We’ve been breaking, rebuilding, and improving that storage layer for 20 years. We started by building storage servers from scratch in a Palo Alto apartment to save 90% on hardware. Turns out hard constraints make for pretty good enginee...

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